REFRACTORY SHEET FIBER BOARD Types RSBD-LD and Type RSBD-HD Refractory Sheet Board Type RSBD-LD and TYPE RSBD-HD are rigid, high temperature ceramic fiber boards manufactured in a wet forming process using aluminasilica fibers and binders. They are rated to 1260°C (2300°F) and have densities of 0.26 g/cc (16 pcf) and 0.46 g/cc (25 pcf). They offer low thermal conductivity, high temperature stability, uniform density, and excellent resistance to thermal shock and chemical attack. Type RSBD-HD's higher density and strength make it wellsuited for applications experiencing vibration, mechanical stress and strong erosive forces. The excellent rigidity and modulus of rupture possessed by the RSBD-HD makes it strong and self-supporting, yet relatively lightweight and easy to cut or machine. This allows for quick, efficient handling and high installation rates, thereby enabling fast turnaround times in a variety of industrial insulation applications. Type RSBD-LD exhibits similar properties, but is lower in density and has lower thermal conductivity. These materials exhibit excellent chemical stability, resisting attack by most corrosive agents. Exceptions are hydrofluoric, phosphoric, hydrochloric and sulfuric acids, as well as concentrated alkalies. If wet by water, steam or oil, thermal and physical properties are completely restored upon drying. SUGGESTED APPLICATIONS • • • • • • • • • • • • • • Full thickness refractory lining Insulating backup to dense refractories Furnace hot face lining in ceramic kiln, box furnace & petrochemical furnace Board over blanket hot face lining Rigid high temperature gaskets & seals High-temperature baffles & muffles Flue & chimney linings in furnaces & kilns Glass tank side & end wall Heat shields for personal protection Hot gas duct linings Low & high-temperature dryers Pouring forms for castable Expansion joints Insulating backup to brick & castable ZIRCAR Refractory Composites, Inc. P.O. BOX 489, FLORIDA, NY 10921-0489 Tele: (845) 651-2200, Fax: (845) 651-1515 e-mail: [email protected] Home page: http://www.zrci.com To provide handling strength during the manufacturing process, small quantities of organic and inorganic binders are typically added to the board formulation. Where present, the organic binding agents burn out at temperatures between 232°C (450°F) to 316°C (600°F) during initial heat up by the end user. Following burnout of the organic binder, the boards are white in color. Custom boards, shapes and preparations are available on request. Our forming processes, large inventory of custom tooling and state of the art machining techniques allow a wide variety of sizes and shapes to be made. Special geometries such as disks, rings and custom-machined shapes can be fabricated. Tight tolerance machining, compositional variations and the application of surface rigidizers and hardening agents are available. Please contact us with your special requirements. Technical Data Bulletin No. ZRCI-600 Rev December 2017 This information, which is subject to change, is offered solely for your consideration and should not be taken as a warranty or representation for which we assume legal responsibility. It is not to be understood as permission or recommendation to practice a patented invention without a license and the user should determine

Types RSBD-LD and Type RSBD-HD CHARACTERISTICS & PROPERTIES RSBD-LD TYPE Nominal Composition, wt% AlSiO2 SiO2 Kaolin Clay Organic content LOI. wt. % Density, gm/cc(pcf) Color Max. Use Temp. *, °C(°F) Modulus of Rupture**, MPa(psi) as received after 24 hrs at 1010°C(1850°F) Compressive Strength**, MPa (psi) at 5% compression as received after 24 hrs at 1010°C(1850°F) Thermal Conductivity, W/m°K(BTU/hr. ft² °F/in) 204°C(400°F) 649°C(1200°F) 1010°C(1850°F) Linear Shrinkage‡, % after 4 hrs. at 1200°C(2200°F) Dielectric Strength, Volts/mil * Maximum use temperature is dependent on variables such as...